UITabbedPage.xaml

<?xml version="1.0" encoding="UTF-8"?>
<TabbedPage xmlns="http://xamarin.com/schemas/2014/forms" 
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
xmlns:me="clr-namespace:MyNavigarion;assembly=MyNavigarion"
x:Class="MyNavigarion.UITabbedPage">

	<TabbedPage.Children>

		<ContentPage BackgroundColor="Aqua" Title="Pagina 1" Icon="a.png">
			<ContentPage.Content>
				<Button Text="Salvar" Clicked="OnClicked"></Button>
			</ContentPage.Content>
		</ContentPage>

		<ContentPage BackgroundColor="Red" Title="Pagina 2" Icon="b.png">
			<ContentPage.Content>
				<Label Text="Pagina 2" TextColor="White"></Label>
			</ContentPage.Content>
		</ContentPage>

		<ContentPage BackgroundColor="Blue" Title="Pagina 3" Icon="c.png">
			<ContentPage.Content>
				<Label Text="Pagina 3" TextColor="White"></Label>
			</ContentPage.Content>
		</ContentPage>

				<ContentPage BackgroundColor="Aqua" Title="Pagina 1" Icon="a.png">
			<ContentPage.Content>
				<Label Text="Pagina 1" TextColor="White"></Label>
			</ContentPage.Content>
		</ContentPage>

		<ContentPage BackgroundColor="Red" Title="Pagina 2" Icon="b.png">
			<ContentPage.Content>
				<Label Text="Pagina 2" TextColor="White"></Label>
			</ContentPage.Content>
		</ContentPage>

		<ContentPage BackgroundColor="Blue" Title="Pagina 3" Icon="c.png">
			<ContentPage.Content>
				<Label Text="Pagina 3" TextColor="White"></Label>
			</ContentPage.Content>
		</ContentPage>

		<me:Page4 />

	</TabbedPage.Children>
</TabbedPage>